Composition



comma R PLASIIC Cross Reference UNITED STATES PA'rENT oFFIoE.

BOIBEBT sum, or sax JOSE, camoimu.

WALL-FINISHING COMPOSITION.

170 Drawing.

To all whom it may concern:

Be it known that I, Romuz'r SHARP, a citizen of the United States, and resident of San Jose, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in .Wall-Finishing Compositions, of which-the following is a specification.

My invention relates to an improved composition for use in finishing walls, and articularly for use in surfacing and tinting plastered walls.

The object of my invention is to provide a composition of such a nature that it will satisfactorily cover a wall with one application or coat. In refinishing or tinting old walls it is usually necessary to thoroughly clean and size the surface before the new tint is applied. Old walls that are greasy and spotted usually requires two coats of the new tint in order to get a uniform color. I have discovered that a composition made up of a suitable body material such as whiting, or Paris white, or pigments, a silicate bearing material, glue, alum and linseed oil in proper proportions according to the character of the surface to be covered and with suflicient water ,to secure the required consistency, forms a covering medium that readily adheres to dirty or greasy walls and furnishes a uniform, solid and lastin surface and color in one application. t not only forms a solid even color by satisfactorily covering water stains, neutralizing lime burns and other faulty conditions of the wall but it dries quickly, stops suction and shows no laps.

WVhile the proportions of the ingredients may vary somewhat widely according to the necessities of each case, I have found that a composition prepared as follows is satisfactory for use -on the average plastered wall that has become somewhat discolored, dirty orlgreasyt.) f P h;

irst a out 20 arts 0 aris ite is dissolved in water to form a m ium thick to the first max ure an .7 it is ready for use.

Specification of Letters Patent. Patented J uly 15, 1919,

Application filed December 17, 1917. Serial Io. 907,595. 7

paste. One part lue is then melted by the application of ea and the melted glue thoroughly mixed with the Paris White. If a tinti pi%egt the Paii s w 1te is replaced with an equal amount of the pigment. One part alum dissolved in Rot water and thoroughl Y mixed with the arls white mixture. ne-half part water glass is then mixed with threequarters part raw linseed oil and then added oroughly mixed therewith. After this composition has been strained and diluted with water as required composition is improved if the mixture of linseed 011 and water glass is thinned by adding thereto about an equal amount of hot water I his composition may be evaporated to a dry state and then prepared for use by adding sutficient water to secure the necessary consistency.

It is understood of course that the invention is not limited to the disclosure of the details above set forth but is intended to cover all matter included within the scope of the appended claims.

I claim 1. A wall finishing composition comprisalum and linseed oil.

3. A wall finishing composition comprising Paris white, water glass, glue, alum and raw linseed oil.

4. A wall composition comprising Paris white substantially 20 arts, water glass substantially part, glue substantially 1 part, alum substantially 1 part, and raw linseed oil substantially i part. In testimony whereof I have hereunto aifixed my signature this 10th day of Decemher, 191' ROBERT SHARP.

copies of thin patent my be obtained for the cents each, by addressing the Commissioner of Patents,

, Washington, D. 0. v

I Examine:

1 is used then a portion of 50 I have found that the 60 

